[python] Qt4 With Python2.7 and Vertual Enviroment

1. conda update conda
2.  conda create -n qtEnv python=2.7 anaconda
3. activate qtEnv 

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next, we need to change qtpy 5 -> qtpy4
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4. conda install -c anaconda pyqt=4.11.4

Done! go to visual studio and add python env